• Prostate Health: Frequently used to ease symptoms of benign prostatic hyperplasia (BPH) or an enlarged prostate, such as weak urine flow or frequent nighttime urination.
• Hair Loss: Often taken to combat male or female pattern hair loss by allegedly blocking the 5-alpha-reductase enzyme, which turns testosterone into dihydrotestosterone (DHT).
• Scientific Evidence: Research results are mixed; while some small studies show mild improvements in urinary flow or hair density, larger clinical trials (including from the National Institutes of Health) found it often performs no better than a placeb